CN105618647B - The cold rolling process of cutter blank - Google Patents
The cold rolling process of cutter blank Download PDFInfo
- Publication number
- CN105618647B CN105618647B CN201610103881.9A CN201610103881A CN105618647B CN 105618647 B CN105618647 B CN 105618647B CN 201610103881 A CN201610103881 A CN 201610103881A CN 105618647 B CN105618647 B CN 105618647B
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- China
- Prior art keywords
- blank
- cutter
- thickness
- blade end
- milling train
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H7/00—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons
- B21H7/10—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons knives; sickles; scythes
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- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Knives (AREA)
- Metal Rolling (AREA)
Abstract
The present invention provides the cold rolling process of cutter blank, includes the following steps：Step S101, the roll entrance that the blade end of blank is put into milling train carry out the first passes, and the thickness at the blade end of blank is made to reduce by 0.3 0.8mm；Step S102, the roll entrance that the blade end of blank is put into milling train carry out the second passes, and the thickness at the blade end of blank is made to reduce by 0.3 0.8mm.In the present invention, the blade end of blank is introduced into milling train and is rolled, and blank is bitten by milling train.After rolling, the thickness stepped cross of blank is distributed；The thickness minimum at blade end meets the subsequent process requirements of cutter, and knife sample is closer to standard；Cutter blank intensity, hardness after passes twice rise, tough modeling index declines, and can ensure its intensity as cutter.Moreover, secondary rolling can play the surface of blank smooth effect.
Description
Technical field
The present invention relates to tooling cost field more particularly to a kind of cold rolling process of cutter blank.
Background technology
Existing cutter blank processing method is：Blank is forged using belt drop hammer, blank is made to form hilt blank；Right
After blank is heated at high temperature, the blade part of high temperature blank is forged by belt drop hammer, blank is thinned and plays wide generation
First base；Then first base is sliced, forms cutter blank.But in above-mentioned technical proposal, belt drop hammer to the blade of high temperature blank into
Row is when forging, and forges uneven, and blade seems uneven because forging.It is to the entire flat of blank and during forging
Face is processed, and the cutter blank after processing is caused to be of uniform thickness, and knife spine can not make differentiation with blade.As it can be seen that existing cutter blank adds
Work method has the following problems：The blade of cutter blank seems uneven because forging, and causes cutter blank passing rate of processing low；And entire knife
Base is of uniform thickness, and knife spine can not make differentiation with blade.
Invention content
The object of the present invention is to provide the cold rolling process of cutter blank, need not move through heat treatment, and process is simple, and blade is not in
It is uneven, and the blade part thickness of cutter blank after processing can be made thin and knife spine portion.
In order to achieve the above object, the present invention provides the following technical solutions,
The cold rolling process of cutter blank comprising following steps：
Step S101, the roll entrance that the blade end of blank is put into milling train carry out the first passes, make the knife of blank
The thickness at sword end reduces 0.3-0.8mm；
Step S102, the roll entrance that the blade end of blank is put into milling train carry out the second passes, make the knife of blank
The thickness at sword end reduces 0.3-0.8mm.
In step S101, the blade end of blank is introduced into milling train and is rolled, and blank is bitten by milling train.Rolling finishes
Afterwards, the thickness stepped cross distribution of blank, the thickness at blade end are minimum.Second is carried out using step S102 to roll, blade
The thickness at end further becomes smaller.Cutter blank intensity, hardness after passes twice rise, tough modeling index declines, Neng Goubao
Demonstrate,prove its intensity as cutter.Moreover, secondary rolling can play the surface of blank smooth effect.It is introduced into milling train
The thickness at the blade end of rolling is less than knife spine end, meets the actual use demand of cutter, reduces subsequent manufacturing procedure.
In a kind of preferred embodiment, in step S101, the blade end thickness of the blank reduces 0.5mm.Control exists
In the deflection of 0.5mm, it can ensure that the deformation of entire blank is uniform.
In a kind of preferred embodiment, in step s 102, the blade end thickness of the blank reduces 0.5mm.
In a kind of preferred embodiment, in step S101, the blank is the steel plate of thickness 2-4mm.
In a kind of preferred embodiment, in step S101, the blank is the steel plate of thickness 3.5mm.
In a kind of preferred embodiment, in step S101, the roll-force of milling train is 200-500kN.This rolling force
Enough effectively control blanks bite and ensure the thickness control after blank rolls between 0.3-0.8mm.
In a kind of preferred embodiment, in step S101, the roll-force of milling train is 350kN.
Further include that step S1001 selects suitable stainless steel to roll before step S101 in a kind of preferred embodiment
Volume；
Stainless steel is rolled volume and pulls into straight band, and carries out lateral cutting to straight band by step S1002, and straight band is made to be cut into steel plate；
Step S1003 carries out steel plate to be stamped and formed out blank.
Beneficial effects of the present invention are：
The blade end of blank is introduced into milling train and is rolled, and blank is bitten by milling train.After rolling, the thickness of blank at
Trapezoidal shape is distributed；The thickness minimum at blade end meets the subsequent process requirements of cutter, and knife sample is closer to standard；By passage twice
Cutter blank intensity, hardness after rolling rise, tough modeling index declines, and can ensure its intensity as cutter.Moreover, secondary
Rolling can play the surface of blank smooth effect.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the flow chart of one embodiment of the present invention.
Specific implementation mode
Below in conjunction with the attached drawing of the present invention, technical scheme of the present invention is clearly and completely described, it is clear that institute
The embodiment of description is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention,
The every other embodiment that those of ordinary skill in the art are obtained without creative efforts, belongs to this hair
The range of bright protection.
The cold rolling process of cutter blank provided by the invention comprising following steps, such as Fig. 1,
Step S1001 selects martensitic stain less steel to roll volume as processing raw material.
Stainless steel is rolled volume and pulls into straight band, and carries out lateral cutting to straight band by step S1002, and straight band is made to be cut into steel plate.
Step S1003 carries out plate to be stamped and formed out blank.The size of blank is width 8cm, long 16cm, thick 0.35cm.Root
According to the tool dimension of processing, the size of blank can also be adjusted correspondingly, and be such as adjusted in the range of 0.2-0.4cm, all
Can meet the needs of processing cutter blank.
Step S101, the roll entrance that the blade end of blank is put into double-roll rolling mill carry out the first passes, and control is rolled
Power processed makes the thickness at the blade end of blank reduce 0.3-0.8mm between 200-500kN by rolling.Preferably, controlled rolling
Power makes the thickness at the blade end of blank reduce 0.5mm between 350kN by rolling.
Step S102, the roll entrance that the blade end of blank is put into double-roll rolling mill carry out the second passes, and control is rolled
Power processed makes the thickness at the blade end of blank reduce 0.3-0.8mm between 200-500kN by rolling.Preferably, controlled rolling
Power makes the thickness at the blade end of blank reduce 0.5mm between 350kN by rolling.
Cutter blank intensity, hardness after passes twice rise, tough modeling index declines, it can be ensured as cutter
Intensity.Moreover, secondary rolling can play the surface of blank smooth effect.Using the method for cold rolling, after processing
Knife material surface smoothness be significantly larger than hot rolling, and the material density of knife material is evenly, hardness higher.Meanwhile being introduced into milling train
The thickness at the blade end of rolling is less than knife spine end, meets the actual use demand of cutter, reduces subsequent manufacturing procedure.
Cutter blank made of above-described embodiment is tested for the property with cutter blank made of the prior art, specific data such as table
One.As it can be seen that cutter blank made of the present embodiment, surface smoothness is significantly larger than cutter blank made of existing hot rolling mode, and
The uniform situation of its density is also better than existing cutter blank；Moreover, the material density and hardness of cutter blank is all than existing cutter blank higher.
In this implementation, process is simple, needs not move through heat treatment, the surface of cutter blank will not be because being thermally formed oxidation film；And operation it is difficult
Spend lower, standard of the manufactured cutter blank closer to cutter.
Table one
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. the cold rolling process of cutter blank, which is characterized in that include the following steps：
Step S101, the roll entrance that the blade end of blank is put into milling train carry out the first passes, make the blade end of blank
Thickness reduce 0.3-0.8mm；The blank is the steel plate of thickness 2-4mm；The roll-force of milling train is 200-500kN；
Step S102, the roll entrance that the blade end of blank is put into milling train carry out the second passes, make the blade end of blank
Thickness reduce 0.3-0.8mm.
2. the cold rolling process of cutter blank according to claim 1, it is characterised in that：In step S101, the blade of the blank
Thickness is held to reduce 0.5mm.
3. the cold rolling process of cutter blank according to claim 1 or claim 2, it is characterised in that：In step s 102, the knife of the blank
Sword end thickness reduces 0.5mm.
4. the cold rolling process of cutter blank according to claim 1, it is characterised in that：In step S101, the blank is thickness
The steel plate of 3.5mm.
5. the cold rolling process of cutter blank according to claim 1, it is characterised in that：In step S101, the roll-force of milling train is
350kN。
6. the cold rolling process of cutter blank according to claim 1, it is characterised in that：Further include step before step S101
S1001 selects suitable stainless steel to roll volume；
Stainless steel is rolled volume and pulls into straight band, and carries out lateral cutting to straight band by step S1002, and straight band is made to be cut into steel plate；
Step S1003 carries out steel plate to be stamped and formed out blank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610103881.9A CN105618647B (en) | 2016-02-25 | 2016-02-25 | The cold rolling process of cutter blank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610103881.9A CN105618647B (en) | 2016-02-25 | 2016-02-25 | The cold rolling process of cutter blank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105618647A CN105618647A (en) | 2016-06-01 |
| CN105618647B true CN105618647B (en) | 2018-08-21 |
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ID=56034204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610103881.9A Active CN105618647B (en) | 2016-02-25 | 2016-02-25 | The cold rolling process of cutter blank |
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| Country | Link |
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| CN (1) | CN105618647B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111085834A (en) * | 2019-11-28 | 2020-05-01 | 宁波锋砺金属制品有限公司 | Blade production process and production line thereof |
| CN111266817A (en) * | 2020-02-17 | 2020-06-12 | 晏榕谦 | Cold rolling method of cutter blank |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1080219A (en) * | 1992-06-18 | 1994-01-05 | 王化宇 | Process for making blade of stubble cleaner by single hot-roll forming |
| CN101691638A (en) * | 2009-10-19 | 2010-04-07 | 常熟市长江不锈钢材料有限公司 | 6Cr14 stainless steel strip and manufacturing method thereof |
| CN102719640A (en) * | 2012-07-10 | 2012-10-10 | 冶科金属有限公司 | Production method of stainless steel band used for internal round diamond blade |
| CN202527638U (en) * | 2012-03-30 | 2012-11-14 | 雷火根 | Knife and sword initial blank hot rolling forming machine |
| CN103736886A (en) * | 2014-01-22 | 2014-04-23 | 浙江精龙刀剑有限公司 | Sword blank hot-rolling former and hot-rolling manufacturing method using same |
| CN105073288A (en) * | 2013-04-01 | 2015-11-18 | 日立金属株式会社 | Method for manufacturing martensitic stainless steel for blades |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0694055B2 (en) * | 1983-07-06 | 1994-11-24 | 松下電器産業株式会社 | Method of manufacturing cutlery |
-
2016
- 2016-02-25 CN CN201610103881.9A patent/CN105618647B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1080219A (en) * | 1992-06-18 | 1994-01-05 | 王化宇 | Process for making blade of stubble cleaner by single hot-roll forming |
| CN101691638A (en) * | 2009-10-19 | 2010-04-07 | 常熟市长江不锈钢材料有限公司 | 6Cr14 stainless steel strip and manufacturing method thereof |
| CN202527638U (en) * | 2012-03-30 | 2012-11-14 | 雷火根 | Knife and sword initial blank hot rolling forming machine |
| CN102719640A (en) * | 2012-07-10 | 2012-10-10 | 冶科金属有限公司 | Production method of stainless steel band used for internal round diamond blade |
| CN105073288A (en) * | 2013-04-01 | 2015-11-18 | 日立金属株式会社 | Method for manufacturing martensitic stainless steel for blades |
| CN103736886A (en) * | 2014-01-22 | 2014-04-23 | 浙江精龙刀剑有限公司 | Sword blank hot-rolling former and hot-rolling manufacturing method using same |
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| Publication number | Publication date |
|---|---|
| CN105618647A (en) | 2016-06-01 |
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